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No-load energy-saving device of direct-current welding machine

An energy-saving device, DC welding technology, applied in arc welding equipment, welding equipment, manufacturing tools, etc., can solve the problems of personal electric shock, reduce the power factor of the grid, waste electric energy, etc., and achieve the effect of reducing the secondary voltage and saving electric energy.

Active Publication Date: 2019-03-08
ZHENGZHOU UNIV OF IND TECH
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Problems solved by technology

Welding machines generally work intermittently. During welding, it consumes a large amount of electric energy. However, during the intermittent period when the welding machine stops welding, the power consumption is generally hundreds of watts. Especially when workers forget to turn off the power switch after work, the welding machine is always empty. This will not only waste electric energy in vain, but also reduce the power factor of the power grid, and even cause personal electric shock accidents

Method used

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  • No-load energy-saving device of direct-current welding machine

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Embodiment Construction

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0024] A no-load energy-saving device for a DC welding machine, including a welding machine T1, a circuit to be welded, and a welding control circuit. The main contact KM1-1 of the contactor is closed, and the welding machine is energized for welding.

[0025] Specifically, the circuit to be welded includes a main circuit to be welded and a control circuit to be welded, the main circuit to be welded is connected to the input end of the electric welding machine...

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Abstract

The invention relates to the technology of safe energy saving of a welding machine, in particular to a no-load energy-saving device of a direct-current welding machine. The no-load energy-saving device of the direct-current welding machine comprises a welding machine body T1, a circuit to be welded and a welding control circuit. According to a power source, an output voltage of the welding machinebody is reduced to a safe low voltage through capacitors of the circuit to be welded, by means of the welding control circuit, a main contact KM1-1 of an alternating current contactor of the circuitto be welded is closed, and the welding machine body is electrified to carry out welding. At the intermission of welding, three input ends of the direct-current welding machine power source are automatically connected with the capacitors in series, the secondary voltage of the direct-current welding machine is greatly reduced, a safety protection effect is achieved, and electric energy is greatlysaved through the welding machine.

Description

technical field [0001] The invention relates to safety and energy-saving technologies for electric welding machines, in particular to a no-load energy-saving device for direct current electric welding machines. Background technique [0002] AC and DC welding machines are indispensable welding tools in machinery manufacturing factories, equipment maintenance units and construction sites. Electric welding machines generally work intermittently. During welding, it consumes a large amount of electric energy. However, during the intermittent period when the electric welding machine stops welding, the power consumption is generally hundreds of watts. Especially when workers forget to turn off the power switch after get off work, the electric welding machine is always empty. It will not only waste electric energy in vain, but also reduce the power factor of the power grid, and even cause personal electric shock accidents. Contents of the invention [0003] In order to solve the d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K9/10
CPCB23K9/1043Y02P70/10
Inventor 王水成田丰庆李银花
Owner ZHENGZHOU UNIV OF IND TECH
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